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Portable Pulsed Coherent Lidar for Noncooperation Targets at the Few-Photon Level
2021
Sensors
The decoherence in coherent lidar becomes serious with the increase in distance. A small laser spot can suppress the decoherence of the echo light from noncooperation targets. However, it is very difficult to keep a small light spot over a long distance. In this paper, a pulsed coherent lidar with high sensitivity at the few-photon level was demonstrated. A phase plate was used to modulate the wavefront of the laser to achieve 100 m focusing which reduced the decoherence effect. Based on
doi:10.3390/s21072341
pmid:33801721
fatcat:4uydscvzlvfdrncywdfi3gzdze